Is it a must to bring baby to take the vaccine on time other than delaying it like for a month for the 4th months vaccine? thanks in advance.

If there is a need to delay u should check w the nurse or doctor. If it clashes w ur personal schedule then maybe u might wana consider for certain jabs do at the private clinics caz at polyclinic if u miss the appointment it can be quite a long time till the next vaccine. Do keep in mind that ur child is not protected against the sickness unless he finishes the vaccines for that sickness